I've always liked having lots of minor trinkets.
Sending stones: For if the party ever gets split.
Chronocharm of the Horizon Walker; movement, yeah. A half dozen boodspike: Tempo's as well.
A couple Safewing Emblems; you never know when you might need one.
Various stat boosters, save boosters
If cleric, dozens of reliquary holy symbols
Anklet of Translocation, Armband of Elusive Action, Artificer's Monocle, Brooch of Stability (kinda meh, but cheap and if it saves my life, it's worth it), a few healing belts, strong arm bracers, a hat of disguise...
Armor: Whatever is best for the character, + whatever bonuses I can get, +whatever augment crystal (usually the cheap DR/1 one and a restful crystal); +armor spikes which eventually get enchanted.
Weapon: A good melee weapon with a wand chamber, and the +1 Eager/warning quarterstaff of nerveskitter someone else pointed out.
I am also not a fan of any "charged" items; I generally try to buy something with charges/day or infinite use.